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MAX8973A
EVALUATION KIT AVAILABLE
9A, Three-Phase Step-Down Switching Regulator
General Description
The MAX8973A high-efficiency, three-phase, DC-DC step-down switching regulator delivers up to 9A of output current in a compact footprint with excellent transient response. Each phase operates at a 2MHz fixed frequency, allowing the use of small magnetic components. Maxim Integrated’s proprietary Rotational Phase Spreading algorithm optimizes efficiency at low output currents. Software-selectable forced-PWM mode allows either fixed-frequency operation, or improved efficiency at light load with a variable frequency in skip mode. The tripleinductor architecture reduces the size of the external components while providing the benefit of ripple current cancellation.